There are such moments in any other person’s life when you just completely bored and unaware of what to do. You want to have some rest and yet do something for fun. Or you are travelling long distance and have to spend a great deal of time even without much moving. In any case, Sudoku will turn on your brain work and make you think logically.

You have two options: play online or download to your portable computer device and the second one is to print out some of web-based games.

If you play in online or offline mode you have some advantages. For example you may set the required amount of time you will spend for thinking over the strategy, you may immediately pick the level of complicity (easy, medium, hard and very hard).

The aim is to complete 9*9 square in such a way that each of 3*3 boxes, row and column comprising this grid are filed with digits from 1 to 9 not repeating them. Depending on the complicity of the game some cells in this grid are filled by default. You have to fully complete this square table with numbers.

Sudoku in Japan where it originated from means single number. Hence the rules go. You are supposed to use your logic and reasoning to guess the missing numbers, then click the mouse on empty cell and add the digit.

If you have printed sheet do the same with pencil and paper.

Free Sudoku will not let you get bored as it offers unlimited kinds of puzzles to never have you guessed at once.

The scientists find out incredible thing: Japanese puzzles help sequence the genes to reveal the DNA sequences. If used solely playing this game it is possible to lean over 100 sequences of multiple genes analysis.

Perhaps, you would like to know your DNA kind or just want some useful fun? Anyway, free Sudoku will not make you pay money for developing your brain.

If talking about different types of Sudoku, we can also mention the most famous and popular one: Kakuro – the mathematical analog of usual crossword puzzles, which instead of the tasks in the shaded cells indicated the number of letters in the neighboring lines, geometric puzzles contain no direct squares, in which the numbers are not repeated, and some regions are marked by special color; Samurai is a classic version of free Sudoku, which consists of five zones 9 on 9 that are shaped by the principle of flowers and some others. Choose the one you like the most!

Have a good time and enjoy your play! And remember to download your own version of this famous game on your PC.